Clean, two-part bloom nutrient for hydroponics

Athena Bloom A 4-0-5 (Blended) delivers a precise NPK and chelated micronutrients for efficient nutrient uptake in coco, rockwool, or any media and water type. Its sediment-free liquid formula stays clean in reservoirs and plays nicely with dosing and irrigation systems, including fine drippers.

Benefits for flowering: Athena Bloom A 4-0-5

Used in equal parts with Bloom B, this two-part bloom nutrient accelerates the onset of flowers, increases flowering sites, and supports dense, high-quality production. The balanced chemistry supports a wider pH range, making it a reliable hydroponic fertilizer from flip to finish.

How to use this blended formula

Apply equal amounts of Bloom A and Bloom B throughout the flowering stage to maintain consistent EC and plant nutrition. Occasional micro-particles may appear and are normal—they don’t affect mineral balance or system compatibility. Add 2-7 mL of Athena Bloom A per gallon of water during the flowering phase.

Key features:

Clean, sediment-free liquid—compatible with dosing pumps, irrigation lines, and fine drippers.
4-0-5 NPK with chelated micronutrients for strong uptake across a wider pH range.
True two-part system (use A + B in equal parts) for consistent flowering nutrition.
Works with any media (coco, rockwool, soilless) and water type (RO or tap).
Commercial 55-gallon drum—mix-ready, scalable, and consistent for large rooms.

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Athena Blended Bloom A (4-0-5) | 55 Gallon

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